I downloaded the 7603 by using Tuner Pro and PC Hammer. Tuner pro works but PC hammer has options. I downloaded the 7603 os from hear but it was for a returnless fuel system.

Thank you fine sir. Tuning is definitely in the future. Just trying to get the truck on the road and bugs worked out. But the original 04 truck did seem like a dog.

That would be amazing. I would need the fuel segment from a 2002 5.7l van and the fuel gauge output enabled. I believe it sends it to pin 54. I also need the tank size changed to 42 gallons. I would...

This is what Im trying to accomplish in the photo. Its not perfect but guys adjust the fuel table to get it close. But a output for the gauge needs to be set because the factory 04 gauge worked...

Yes my 99 suburban had the black box with 4 connectors. I used 2004 LQ4 DBW and had to change the OS to 7603 because it had the 9405 OS. But the fuel system is a return style which would probably...

Im pretty sure my bin is set up already for this. I can adjust the PWM gauge table but dont know what output its set too. OS 7603

So far tuner pro has worked for everything I needed except setting up the fuel gauge. I swapped a LQ4 6.0l into a 99 suburban and trying to get the fuel gauge to work. I know that it runs through the...

Thanks Rick. It was suggested that 7603 bin would work but couldn't find one set up for my needs. I guess it time to learn how to segment swap...

Hi guys. My P59 has the 9405 os and there is no XDF file available. I've looked through the files and cant fine a replacement. If someone has a bin and xdf to replace my OS i would appreciate it....

I've put this on the back burner but need to get this done. I'm going to try the 7603 and hope I get the same out come. Thanks for the help.

Hi. New to the group and this will be my first time tuning. Im running a LQ4 in a suburban 2500 using the 2003 trans. Everything is bolted in but just need fuel lines and tune. Im using LS droid and...